Experience Strategy

Participate in Races at the Dragon Track. Experience rewards seem to scale up for higher level players, and there are periodic bonuses of millions of experience.

Buy and Sell from the market: Buying and then reselling things is a quick, albeit expensive, way to get experience. Decorations can be built instantly and give the half purchase price in experience. For example, a Yellow Tree costs 500 and gives 250. Buildings and habitats may take longer to build, but most of them give out experience in a 1:1 ratio with purchase price and are therefore more cost effective.

Grow treats and feed dragons: Harvesting treats you have grown on your treat farms gives out experience points. Feeding these treats to your dragons gives 20 per unit fed (cited here). When you add these two experience sources together the experience/dragoncash ratio becomes quite lucrative.Example: Dragon Fruit (3000 units of treat) costs 75,000 and gives 125,000. Add the 60,000 you get for feeding the treats to your dragons (3000x20) and you get 185,000 for 75,000 (2.47:1 ratio). Other treats produce different ratios depending on their unit price. This strategy is most beneficial to your park as a whole, because higher level dragons earn more dragoncash and attract more visitors.

Participate in the Colosseum: Each day, a different elemental event will occur in the Colosseum. Winning the gold trophy in these daily events will give you 10% of the needed experience to get to the next level. Silver trophies will earn you 5% of experience to the next level and bronze trophies will earn you no experience.

Gems Strategy

Form a circle friends: Every 24 hours, you get three free gems for gifting to friends on your friend list. In order to ensure that you get the same amount of gems that you give, form a "gem circle" of four people. Gift your gems only to each other and every day each of you are guaranteed to receive three gems. If you purchase the Dragonsai Gifting Tree you can gift an additional three gems daily and can expand the circle to yourself and six friends.

Share posts on Facebook and Twitter after completing goals: Every time you complete a goal, you're allowed to share/tweet it on Facebook/Twitter, and that give you one gem for each of these portals (two for both).

Participate in the Colosseum: Gold trophies give five gems, silver trophies give two gems and bronze trophies give 0 gems. High level dragons which include the element displayed in the Colosseum have the best chance of winning a gold trophy.

Dragon Leveling Strategy

When leveling-up dragons, it is generally beneficial to level them all up together equally, not one by one, since there are diminishing dragoncash collection returns of DragonCash→Food→Dragon Level investment.

The previous "Boost Optimization" strategy has now been updated to reflect Metal, Light, and Dark-type dragons, as well as Gold Hybrids and Giant Habitats. Now obsolete due to the solely positive effects of Element Boosts, the guide was updated to show the most economical way to use habitats to display all dragons.